Apparatus for use in making shoes



Dec.21,19 43. $4 -11 2,337,094

APPARATUS FOR USE IN MAKING SHOES Original Filed Dec. 13/1941 18 I I] I22 LA.)

Patented Dec. 21, 1943 APPARATUS FOR USE IN MAKING SHOES Sidney J. Finn,Beverly, Mass., assignor to United Shoe Machinery Corporation,Flemington, N. J a corporation of New Jersey Original applicationDecember 13, 1941, Serial No.

Divided and this application December 26, 1942, Serial No. 470,189

12 Claims.

This invention relates to apparatus for use in making shoes andparticularly to apparatus for use in practising the method disclosed inapplication Serial No. 422,808, filed December 13, 1941, in my name, ofwhich this application is a division.

In the cement attachment of soles to shoes by pressure-responsivecement, if the forepart of the sole is located with respect to theforepart of the shoe and then the heel partof the sole located withrespect to the heel part of the shoe, the shank portion of the sole willbridge across the curve of the shank, and the length of the sole fromthe ball to the heel-seat will be less than the distance measured alongthe curve of the shank. Consequently, when the shank portion of the soleis forced against the shank of the shoe, the material of the sole has tostretch in order to equal in length the curve of the shank. This, ofcourse, puts a longitudinal tension on the shank portion of the solewhich tends to cause it to pull away from the shank of the shoe, acondition which militates against the production of shoeshavingpermanently close shanks.

. The object of this invention is to provide an apparatus for overcomingthe above disadvantageous conditions by providing, in the shank portionof the sole, a sufiicient length of material to correspond substantiallyto the length of the corresponding part of the shoe measured along thecurve of the shank.

In attaching soles to shoes with pressureresponsive cement, the forepartis first located with respect to the forepart of the shoe. The shankportion of the sole may then be bent away from the shank portion of theshoe before the heel end of the sole is attached to the heel-seatof theshoe. By the present invention, apparatus is provided to insure that thedistance that the sole is separated from the shank will be sufficient toprovide a distance measured along the sole which will correspond to, orslightly exceed, the distance measured along the curve of the shankbetween the respective contact points between the. sole and the shoe. Asillustrated, the apparatus comprises a pair of fingers relativelymovable heightwise of the shoe and adapted, when in proximity to eachother, to be located between the shoe and sole at the shank portion.Means, for example a treadle, is provided for separating the fingers apredetermined amount which may be varied for different shoes.

In the drawing,

Fig. 1 is a side elevation of apparatus embody ing the presentinvention;

2 is a view similar to Fig. 1, the apparatus being shown in inoperativeposition; and

Fig. 3 is a plan view of the apparatus shown in Fig. 1.

The illustrated apparatus comprises a pair of fingers I 0, I2 carriedrespectively by a lever l4 and an arm I 6. The fingers l 0, 12 may, asshown, be right-angle prisms with their longest faces in contact, theright angles being disposed at the top and, bottom. The arm I6 carryingthe finger I2 is rigidly mounted or formed as an integral offset from asleeve [8 fixed to a vertical shaft 20 mounted for rotation in a bearing22 formed in a bracket having an ear or ears such as 24 adapted to besecured to a suitable fixed support, such, for example, as the left-handside of the machine, for pressing the shoe and sole together. The shaft20 is held from upward movement by a washer 26 secured by a screw 23 tothe shaft. The lever l4 carrying the finger I0 is pivoted at 30 betweenears 32 offset (Fig. 3) from the sleeve 18 which is carried by the shaft20. Between its ends the lever l4 carries a vertical slideway 34 inwhich a sliding block 36 is mounted. An adjusting screw 38 is threadedinto the upper part of the slideway in position to engage the block 35and limit its upward movement with respect to the lever I4. To the block36 is pivoted one end of a link 40. A lever having three arms 42, 44 and46 is pivoted at 48 to the finger arm IS, the lever arm 42 having earsbetween which the lower end of the link 40 is pivoted. A pin on thelever arm 46 is connected by a tension spring 50 to a pin on the fingerarm 16, the spring holding the link 40 and the arm 42 in the angularposition shown in Fig. 2 with the fingers l0, I2 together.

In the bearing 22 is formed a vertical slideway in which is fitted aslide 52 connected at 54 (Fig. 1) to a treadle rod 56. The slide 52carries a roll 58 which engages an inclined slot 60 in the sleeve l8 soarranged that upward movement of the slide will swing the sleeve and thefingers which it carries about the axis of the shaft 20 from right toleft. The upper portion of the slot 60 is vertical and, when the rollreaches this portion of the slot, rotation of the fingers ceases and alateral projection 62 (Fig. 3) carried by the slide 52 engages a roll 64on the lever arm 44. Further upward movement of the slide thenstraightens the toggle formed by the link 40 and the arm 42. The block36 is thus raised and, after engaging the screw 38, separates thefingers Ill, I2 by swinging the finger lever l4 about its axis 30 apredetermined amount, depending upon the setting of the screw, upwardmovement of the slide 52 being limited by engagement of the roll 53 withthe upper end of the slot 60.

In practising the method of my above-mentioned application, a lastedshoe S (Fig. l) and an outsole O are prepared for cement attachment bycoating the overlasted portion of the upper and the marginal portion ofthe attaching face of the sole, including the heel-seat portion of theshoe and sole, with pressure-responsive cement such as the polymerizedchloroprene cement disclosed in United States Letters Patent No.2,061,296, granted November 16, 1936, upon application of Walter H.Wedger, the cement being allowed to dry until it is in such conditionthat the shoe and sole will stick together when brought into contact.The operator then locates the forepart of the sole with respect to theforepart of the shoe and presses them together. Then, While holding theshank-and-heel portion of the sole somewhat separated from the shoe,hedepresses a treadle connected with the slide 52, causing it to moveupwardly, thus swinging the fingers l0, l2 into position between theshoe and sole. Further movement of the treadle causes the fingers toseparate a predetermined amount, depending upon the setting of the screw38. The rear end of the sole is then pressed against the heel-seat ofthe shoe, as shown in Fig. 1.

The amount of separation of the fingers is so adjusted that the distancemeasured along the sole from its point of contact with the shoe at I theball to the point of contact with the shoe at the heel end will be atleast equal to, and may exceed, the distance measured between thesepoints along the shoe bottom. If the length of the shank portion of thesole exceeds the length measured on the shoe against which it is to belaid, the act of forcing the bulged portion of the sole against theshank will place that portion under endwise compression so that it willtend to lie all the more firmly against the shank of the shoe.

The shoe is now ready for treatment by a sole pressing machine having anovel type of pad box which enables the shank portion of the pad to bedepressed relatively to the heel part and forepart so that, when a shoeprepared as described is placed upon the pad, the outwardly bulged heelportion will extend into the depression in the pad. The pressure is thenapplied to the toe and heel,

and finally to the shank portion to force the.

shank portion of the sole into its place against the shank portion ofthe shoe. A machine for this purpose is disclosed and claimed in anapplication, Serial No. 470,188, filed December 26, 19%2, in my name.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. Apparatus for use in the manufacture of shoes comprising a pair ofsuperposed fingers adapted to be disposed between a shoe and sole at theshank portion, and means for separating the fingers.

2. Apparatus for use in the manufacture of shoes comprising a pair ofsuperposed fingers adapted to be disposed between a shoe and sole at theshank portion, and means for separating the fingers a predetermineddistance.

3. Apparatus for use in the manufacture of shoes comprising a pair ofsuperposed fingers adapted to be disposed between a shoe and sole at theshank portion, means for separating the fingers a predetermineddistance, and means for varying the amount of said separation.

4. Apparatus for use in the manufacture of shoes comprising a pair ofsuperposed fingers adapted to be disposed between a shoe and sole at theshank portion, said fingers being arranged for movement in a horizontalplane to cause them to enter a space between the shank of the shoe andits sole, and means for separating the fingers a predetermined amount tocause the shank portion of the sole to be separated from the shankportion of the shoe bottom while the end portions of the sole are incontact therewith.

5. Apparatus for use in the manufacture of shoes comprising a pair ofsuperposed fingers adapted to be disposed between a shoe and sole at theshank portion, said fingers being arranged for movement in a horizontalplane to cause them to enter a space between the shank of the shoe andits sole, means for moving the fingers in said plane, and means forseparating the finger a predetermined amount to cause the shank portionof the sole to be separated from the shank por tion of the shoe bottomwhile the end portions of the sole are in contact therewith.

6. Apparatus for use in the manufacture of shoes comprising a pair ofsuperposed fingers adapted to be disposed between a shoe and sole at theshank portion, said fingers being arranged for swinging movement in ahorizontal plane to cause them to enter a space between the shank of theshoe and its sole, and means for first swinging the finger in said planeand then separating the fingers a predetermined amount to cause theshank portion of the sole to be separated from the shank portion of theshoe bottom while the end portion of the sole are in contact therewith.

7-. Apparatus for operating on hoes comprising a support, an arm mountedon said support for movement about a vertical axis, a lever fulcrumed onsaid arm for movement about a horizontal axis, said arm and lever beingarranged in the same vertical plane, a pair of fingers carried one bythe arm and the other by the lever, and man- 'ually operated means forfirst swinging the arm about its axis and then the lever about itsfulcrum.

8. Apparatus for use in the manufacture of shoes comprising a pair ofsuperposed fingers adapted to be disposed between a shoe and sole attheshank portion, mean comprising a toggle for separating the finger atpredetermined distance, and an adjustable abutment for varying theseparation of the fingers without afiecting the movement of the toggle.

9. Apparatus for use in the manufacture of shoes comprising a pair ofsuperposed fingers adapted to be disposed between a shoe and sole at theshank portion, said fingers being arranged for swinging movement in aplane parallel to the shoe bottom to cause them to enter a space betweenthe shank of the shoe and its sole, and means for separating the fingersheightwise of the shoe a predetermined amount to cause the shank portionof the sole to be separated from the shank portion of the shoe bottomwhile the end portions of the sole are in contact therewith.

10. Apparatus for operating on shoes comprising a support, an armmounted on said support for movement about an axis, a lever fulcrumed onsaid arm for movement about a pivot perpendicular to said axis, said armand lever being arranged in the same plane, a pair of superposed fingerscarried one by the arm and the other by the lever, and manually operatedmeans for first swinging the arm about its axis and then moving thelever about its pivot.

11. Apparatus for operating on shoes comprising a support, an armmounted on said support for movement about an aXis, a lever fulcrumed onsaid arm for movement about a pivot perpendicular to said axis, said armand lever being arranged in the ame vertical plane, a pair of superposedfingers carried one by the arm and.

the other by the lever, and manually operated means for first swingingthe arm about its axis and then moving the lever about its pivot apredetermined amount.

12. Apparatus for operating on shoes compris- 19 on the toggle toseparate the fingers.

SIDNEY J. FINN.

